A Sacramento-area couple is under arrest in connection with last year's death of a two-month old boy in their care.  

Sheriff's investigators say Davonna Byrd and Damian Porter were apprehended this week in San Francisco on charges of murder and child abuse after a year-long investigation.  They were transported to the Sacramento County Main Jail on Thursday. 

The infant was in the custody of Byrd and Porter in April of 2013 at the time of his death, but it's unclear their relationship to the victim. The infant suffered multiple injuries indicative of child abuse.